Technical Exhibit FCC Form 349 SIGA Broadcasting Corp. Minor Change K273CS Facility ID 147278 .247 kW Vertical SIGA Broadcasting Corp, (“SIGA”) the licensee of this facility proposes through this instant application to modify K273CS. The proposal is to move the translator to an existing tower ASR 1057660 using a directional antenna. This facility is a fill in translator for KFJZ (AM) FID 23138, Fort Worth, TX. The resulting 60 dBu contour does not exceed the 2 mV/m contour of the AM. This same proposal BPFT20170615ABA was granted in June 2017 and expired in June of 2020. Interference To Other Facilities The facility SIGA proposes complies with 47 CFR 74.1204 of the Commission’s rules for interference to other facilities. A computer program V-Soft FM Commander was used to show compliance with 03 second NED terrain data. There is no overlap of the proposed facility’s interfering contours with the protected contours of any other application or facility, with the exception of KDGE (FM) FID 9620 Ch. 271C Fort Worth-Dallas, TX and KDMX (FM) FID 47739. Ch. 275C, Dallas, TX. The contour of each of these two facilities that completely encompasses the proposed translator site is 81.74 dBu 50-50. The translator 121.749 dBu 50-10 contour extends a maximum of 19 meters from the base of the tower. When the antenna’s vertical radiation pattern is considered, this contour never reaches ground level. The closest it comes to ground level is 39 meters above ground level at 70 meters from the base of the tower. Therefore no actual interference will occur, as it never reaches ground level. Environmental The proposed facility is an existing 48.7 meter tower. The proposed antenna was studied using the OET FM Model program and will be mounted 37 m above ground level. Using the program with the EPA model, EPA Type 1, the worst- case model, the worst-case power density is 6.42 microwatts/centimeter² which occurs at 8 meters from the base of the tower. This is 3.2% of the maximum level for general population, uncontrolled exposure level, and exempts the facility from further study, as it is an insignificant contributor. K273CS Prop DentonDenton Latitude: 32-54-05.20 N KFJZKFJZ 22 mV/mmV/m DayDay McKinneyMcKinney Longitude: 097-10-52.40 W ERP: 0.247 kW CorinthCorinth FriscoFrisco Channel: 273 Frequency: 102.5 MHz AMSL Height: 241.0 m AllenAllen HighlandHighland VillageVillage Elevation: 200.46 m HighlandHighland VillageVillage TheThe ColonyColony Horiz. Pattern: Directional LewisvilleLewisville KFJZ FlowerFlower MoundMound PlanoPlano WylieWylie Latitude: 32-36-03 N Longitude: 097-15-21 W SachseSachse ERP: 1.00 kW CarrolltonCarrollton RichardsonRichardson Frequency: 0.87 MHz KellerKeller KellerKeller K273CSK273CSGrapevineGrapevine PropProp FarmersFarmers BranchBranch RockwallRockwall AMSL Height: 100.0 m GarlandGarland TranslatorTranslatorAzleAzle 6060 dBudBu 50-5050-50 ColleyvilleColleyville SaginawSaginaw WataugaWatauga UniversityUniversity ParkPark NorthNorth RichlandRichland HillsHills EulessEuless HaltomHaltom CityCity IrvingIrving DallasDallas WeatherfordWeatherford WhiteWhite SettlementSettlement MesquiteMesquite ForneyForney K273CS Lic ArlingtonArlington BalchBalch SpringsSprings BLFT20160822ABM FortFort WorthWorth Latitude: 32-36-04.50 N Longitude: 097-15-23.10 W BenbrookBenbrook ForestForest HillHill ERP: 0.20 kW DuncanvilleDuncanville SeagovilleSeagoville Channel: 273 EvermanEverman Frequency: 102.5 MHz KFJZKFJZ AMSL Height: 270.0 m K273CSK273CS LicLic CedarCedar HillHill DeSotoDeSoto LancasterLancaster KaufmanKaufman Elevation: 185.0 m CrowleyCrowley RendonRendon Horiz. Pattern: Directional MansfieldMansfield BurlesonBurleson GlennGlenn HeightsHeights MidlothianMidlothian Scale 1:562,500 km 0 7 14 21 V-Soft Communications LLC ® © WaxahachieWaxahachie K273CS Mod Siga Broadcasting Corporation REFERENCE CH# 273D - 102.5 MHz, Pwr= 0.247 kW DA, HAAT= 54.3 M, COR= 241 M DISPLAY DATES 32 54 05.20 N. Average Protected F(50-50)= 9.66 km DATA 05-10-21 97 10 52.40 W. Standard Directional SEARCH 05-10-21 ------------------------------------------------------------------------------------------------------------- CH CALL TYPE ANT AZI DIST LAT PWR(kW) INT(km) PRO(km) *IN* *OUT* CITY STATE <-- FILE # LNG HAAT(M) COR(M) LICENSEE (Overlap in km) ------------------------------------------------------------------------------------------------------------- 271C KDGE LIC NCN 150.1 40.03 32 35 20.50 100.000 13.4 90.8 20.3 -50.8* Fort Worth-Dallas TX 330.2 BLH20141222AFE 96 58 06.00 545 736 Ihm Licenses, LLC 275C KDMX LIC _CN 150.1 40.04 32 35 20.00 100.000 13.4 90.8 20.3 -50.7* Dallas TX 330.2 BLH20141222AFH 96 58 05.90 545 736 Ihm Licenses, LLC 273C2 KMAD-FM LIC NCN 37.7 111.46 33 41 31.40 18.000 122.4 49.0 -20.9* 32.1 Whitesboro TX 218.2 BLH20030117ABC 96 26 37.00 205 393 Alpha Media Licensee LLC 273D K273BJ LIC _CN 107.9 44.20 32 46 43.50 0.250 51.2 15.8 -16.1* 0.0 Dallas TX 288.1 BLFT20090121ADC 96 43 52.00 135 281 Inspiration Media Of Texas 273C1 KBRQ LIC ZCN 179.0 119.70 31 49 29.90 100.000 120.5 43.7 -2.4* 66.7 Hillsboro TX 359.0 BMLH20161018AAT 97 09 33.20 137 305 Ihm Licenses, LLC 273L1 KOCQ-LP LIC _CN 0.3 27.18 33 08 45.40 0.100 -0.6 0.4 Denton TX 180.3 0000110994 97 10 47.00 30 226 Organizacion Cristiana La 273D K273CS LIC DVN 191.9 34.02 32 36 04.50 0.200 ---Reference--- Fort Worth TX 11.9 BLFT20160822ABM 97 15 23.10 270 Siga Broadcasting Corporat 273L1 KEFW-LP LIC _CN 242.6 23.91 32 48 07.50 0.010 3.0 13.1 Fort Worth TX 62.4 BLL20180315AAB 97 24 30.10 91 295 North Fort Worth Hispanic 219C0 KKXT LIC _CN 150.0 40.68 32 35 02.50 19.500 17.9 5.5 24.5R 16.2M Dallas TX 330.1 BLED20140903AFT 96 57 49.00 572 764 North Texas Public Broadca 273D K273CP LIC _VN 252.9 60.56 32 44 21.50 0.020 27.3 8.1 31.7 47.7 Mineral Wells TX 72.5 BLFT20160809ABD 97 48 00.10 438 Cssi Non Profit Educationa 273D K273DA LIC _CN 102.1 84.22 32 44 23.40 0.190 22.1 6.6 52.6 48.0 Terrell TX 282.6 BLFT20180829AAP 96 18 01.90 172 Mohnkern Electronics, Inc. ------------------------------------------------------------------------------------------------------------- Terrain database is NED 03 SEC , R= 73.215 qualifying spacings or FCC minimum Spacings in KM, M= Margin in KM In & Out distances between contours are shown at closest points. Reference zone= West Zone, Co to 3rd adjacent. All separation margins (if shown) include rounding. Ant Column: (D= DA Standard, Z= DA 73.215, N= Not DA 73.215, _= Omni), Polarization (C,H,V,E), Beamtilt(Y,N,X) "*"affixed to 'IN' or 'OUT' values = site inside restricted contour. « = Station meets FCC minimum distance spacing for its class. --- ---------------------------|----------------------------------------- --- 05-09-2021 Terrain Data: NED 03 SEC FMOver Analysis K273BJ BLFT20090121ADC K273CS Channel = 273D Channel = 273D Max ERP = 0.25 kW Max ERP = 0.247 kW RCAMSL = 281 m RCAMSL = 241 m N. Lat. 32 46 43.50 N. Lat. 32 54 05.20 W. Lng. 96 43 52.00 W. Lng. 97 10 52.40 Protected Interfering 60 dBu 40 dBu Azimuth ERP HAAT Dist | Azimuth ERP HAAT Dist Actual IX (degrees) (kW) (m) (km) |(degrees) (kW) (m) (km) (dBu) (km) -------------------------------|-------------------------------------------- 228.0 000.2500 0123.8 014.3 | 126.3 000.0356 0060.7 039.1 29.62 229.0 000.2500 0123.9 014.3 | 126.2 000.0359 0060.7 038.8 29.75 230.0 000.2500 0123.8 014.3 | 126.2 000.0362 0060.7 038.6 29.88 231.0 000.2500 0124.4 014.3 | 126.1 000.0364 0060.7 038.4 30.00 232.0 000.2500 0125.7 014.4 | 126.1 000.0363 0060.7 038.1 30.10 233.0 000.2500 0126.6 014.4 | 126.1 000.0364 0060.7 037.8 30.21 234.0 000.2500 0126.7 014.4 | 126.0 000.0369 0060.7 037.6 30.36 235.0 000.2500 0126.0 014.4 | 125.8 000.0375 0060.7 037.4 30.53 236.0 000.2500 0125.4 014.4 | 125.6 000.0382 0060.7 037.1 30.69 237.0 000.2500 0126.2 014.4 | 125.6 000.0384 0060.7 036.9 30.82 238.0 000.2500 0126.1 014.4 | 125.4 000.0390 0060.7 036.7 30.98 239.0 000.2500 0127.1 014.5 | 125.3 000.0392 0060.7 036.4 31.11 240.0 000.2500 0128.0 014.5 | 125.2 000.0396 0060.6 036.2 31.25 241.0 000.2500 0128.9 014.6 | 125.2 000.0399 0060.6 035.9 31.39 242.0 000.2500 0128.4 014.5 | 124.9 000.0407 0060.7 035.7 31.56 243.0 000.2500 0128.7 014.6 | 124.8 000.0412 0060.7 035.5 31.72 244.0 000.2500 0126.1 014.4 | 124.4 000.0425 0060.9 035.3 31.93 245.0 000.2500 0125.0 014.4 | 124.1 000.0434 0061.1 035.1 32.13 246.0 000.2500 0124.3 014.3 | 123.8 000.0442 0061.2 034.9 32.31 247.0 000.2500 0123.1 014.2 | 123.5 000.0453 0061.3 034.8 32.50 248.0 000.2500 0122.2 014.2 | 123.2 000.0463 0061.2 034.6 32.66 249.0 000.2500 0122.4 014.2 | 123.0 000.0471 0061.2 034.4 32.82 250.0 000.2500 0123.5 014.3 | 122.8 000.0476 0061.2 034.1 32.97 251.0 000.2500 0123.9 014.3 | 122.6 000.0483 0061.2 033.9 33.13 252.0 000.2500 0125.0 014.4 | 122.4 000.0489 0061.3 033.7 33.29 253.0 000.2500 0126.4 014.4 | 122.2 000.0495 0061.5 033.4 33.47 254.0 000.2500 0126.7 014.4 | 122.0 000.0504 0061.7 033.2 33.66 255.0 000.2500 0127.1 014.5 | 121.7 000.0513 0061.9 033.0 33.84 256.0 000.2500 0128.4 014.5 | 121.5 000.0520 0062.1 032.8 34.04 257.0 000.2500 0129.4 014.6 | 121.2 000.0528 0062.6 032.6 34.26 258.0 000.2500 0130.3 014.7 | 121.0 000.0537 0063.1 032.4 34.48 259.0 000.2500 0131.1 014.7 | 120.7 000.0547 0063.6 032.2 34.72 260.0 000.2500 0132.0 014.8 | 120.4 000.0558 0064.1 031.9 34.97 261.0 000.2500 0135.4 015.0 | 120.3 000.0562 0064.3 031.6 35.17 262.0 000.2500 0137.2 015.1 | 120.1 000.0571 0064.5 031.4 35.39 263.0 000.2500 0138.7 015.2 | 119.8 000.0582 0065.1 031.1 35.66 264.0 000.2500 0140.1 015.3 | 119.5 000.0592 0066.0 030.9 35.96 265.0 000.2500 0141.3 015.3 | 119.2